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Adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions by using Turkish illitic clay.
J Environ Manage. 2011 Dec; 92(12):3082-90.JE

Abstract

The ability of Turkish illitic clay (TIC) in removal of Cd(II) and Pb(II) ions from aqueous solutions has been examined in a batch adsorption process with respect to several experimental conditions including initial solution pH, contact time, initial metal ions concentration, temperature, ionic strength, and TIC concentration, etc. The characterization of TIC was performed by using FTIR, XRD and XRF techniques. The maximum uptake of Cd(II) (11.25 mg g(-1)) and Pb(II) (238.98 mg g(-1)) was observed when used 1.0 g L(-1) of TIC suspension, 50 mg L(-1) of initial Cd(II) and 250 mg L(-1) of initial Pb(II) concentration at initial pH 4.0 and contact time of 240 min at room temperature. The experimental data were analyzed by the Langmuir, Freundlich, Temkin and Dubinin Radushkevich (D-R) isotherm models. The monolayer adsorption capacity of TIC was found to be 13.09 mg g(-1) and 53.76 mg g(-1) for Cd(II) and Pb(II) ions, respectively. The kinetics of the adsorption was tested using pseudo-first-order, pseudo-second-order, Elovich and intraparticle diffusion models. The results showed that the adsorption of Cd(II) and Pb(II) ions onto TIC proceeds according to the pseudo-second-order model. Thermodynamic parameters including the Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS) changes indicated that the present adsorption process was feasible, spontaneous and endothermic in the temperature range of 5-40 °C.

Authors+Show Affiliations

Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21856065

Citation

Ozdes, Duygu, et al. "Adsorptive Removal of Cd(II) and Pb(II) Ions From Aqueous Solutions By Using Turkish Illitic Clay." Journal of Environmental Management, vol. 92, no. 12, 2011, pp. 3082-90.
Ozdes D, Duran C, Senturk HB. Adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions by using Turkish illitic clay. J Environ Manage. 2011;92(12):3082-90.
Ozdes, D., Duran, C., & Senturk, H. B. (2011). Adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions by using Turkish illitic clay. Journal of Environmental Management, 92(12), 3082-90. https://doi.org/10.1016/j.jenvman.2011.07.022
Ozdes D, Duran C, Senturk HB. Adsorptive Removal of Cd(II) and Pb(II) Ions From Aqueous Solutions By Using Turkish Illitic Clay. J Environ Manage. 2011;92(12):3082-90. PubMed PMID: 21856065.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorptive removal of Cd(II) and Pb(II) ions from aqueous solutions by using Turkish illitic clay. AU - Ozdes,Duygu, AU - Duran,Celal, AU - Senturk,Hasan Basri, PY - 2010/11/25/received PY - 2011/07/05/revised PY - 2011/07/22/accepted PY - 2011/8/23/entrez PY - 2011/8/23/pubmed PY - 2012/1/27/medline SP - 3082 EP - 90 JF - Journal of environmental management JO - J Environ Manage VL - 92 IS - 12 N2 - The ability of Turkish illitic clay (TIC) in removal of Cd(II) and Pb(II) ions from aqueous solutions has been examined in a batch adsorption process with respect to several experimental conditions including initial solution pH, contact time, initial metal ions concentration, temperature, ionic strength, and TIC concentration, etc. The characterization of TIC was performed by using FTIR, XRD and XRF techniques. The maximum uptake of Cd(II) (11.25 mg g(-1)) and Pb(II) (238.98 mg g(-1)) was observed when used 1.0 g L(-1) of TIC suspension, 50 mg L(-1) of initial Cd(II) and 250 mg L(-1) of initial Pb(II) concentration at initial pH 4.0 and contact time of 240 min at room temperature. The experimental data were analyzed by the Langmuir, Freundlich, Temkin and Dubinin Radushkevich (D-R) isotherm models. The monolayer adsorption capacity of TIC was found to be 13.09 mg g(-1) and 53.76 mg g(-1) for Cd(II) and Pb(II) ions, respectively. The kinetics of the adsorption was tested using pseudo-first-order, pseudo-second-order, Elovich and intraparticle diffusion models. The results showed that the adsorption of Cd(II) and Pb(II) ions onto TIC proceeds according to the pseudo-second-order model. Thermodynamic parameters including the Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS) changes indicated that the present adsorption process was feasible, spontaneous and endothermic in the temperature range of 5-40 °C. SN - 1095-8630 UR - https://www.unboundmedicine.com/medline/citation/21856065/Adsorptive_removal_of_Cd_II__and_Pb_II__ions_from_aqueous_solutions_by_using_Turkish_illitic_clay_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0301-4797(11)00287-8 DB - PRIME DP - Unbound Medicine ER -